8 letter words:
spurious10,
7 letter words:
inpours9,
poussin9,
prisons9,
spinors9,
spinous9,
ruinous7,
sinuous7,
urinous7,
6 letter words:
inpour8,
opsins8,
orpins8,
prions8,
prison8,
proins8,
prunus8,
psions8,
purins8,
sirups8,
spinor8,
spurns8,
sunups8,
unrips8,
upruns8,
usurps8,
rosins6,
urosis6,
ursons6,
5 letter words:
noups7,
opsin7,
orpin7,
pions7,
pious7,
pirns7,
pisos7,
porns7,
pours7,
prion7,
priss7,
proin7,
pross7,
psion7,
purin7,
puris7,
risps7,
roups7,
sirup7,
snips7,
soups7,
spins7,
spurn7,
spurs7,
sunup7,
unrip7,
uprun7,
usurp7,
irons5,
nisus5,
noirs5,
noris5,
ornis5,
risus5,
roins5,
rosin5,
ruins5,
sinus5,
sorns5,
sorus5,
sours5,
urson5,
4 letter words:
nips6,
noup6,
opus6,
oups6,
pins6,
pion6,
pirn6,
pirs6,
piso6,
piss6,
pois6,
pons6,
porn6,
poss6,
pour6,
pros6,
psis6,
puir6,
puns6,
puri6,
purs6,
puss6,
rips6,
risp6,
roup6,
sips6,
snip6,
sops6,
soup6,
spin6,
spun6,
spur6,
sups6,
upon6,
urps6,
inro4,
ions4,
iron4,
isos4,
noir4,
nori4,
nous4,
nurs4,
onus4,
ourn4,
ours4,
rins4,
roin4,
ruin4,
runs4,
sins4,
sirs4,
sons4,
sori4,
sorn4,
sour4,
sous4,
sris4,
suns4,
susu4,
unis4,
urns4,
urus4,
3 letter words:
nip5,
ops5,
oup5,
pin5,
pir5,
pis5,
piu5,
poi5,
pos5,
pro5,
psi5,
pun5,
pur5,
pus5,
rip5,
sip5,
sop5,
sup5,
upo5,
ups5,
urp5,
ins3,
ion3,
ios3,
iso3,
nis3,
nor3,
nos3,
nur3,
nus3,
ons3,
ors3,
our3,
ous3,
rin3,
run3,
sin3,
sir3,
sis3,
son3,
sos3,
sou3,
sri3,
sui3,
sun3,
sur3,
sus3,
uni3,
uns3,
urn3,
2 letter words:
op4,
pi4,
po4,
up4,
in2,
io2,
is2,
no2,
nu2,
oi2,
on2,
or2,
os2,
ou2,
si2,
so2,
un2,
ur2,
us2,